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[Launchpad Bug Tracker <557635@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/557635

Title:
  [gm45] Intel GMA X4500HD - LCD Brightness Control no longer works

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Binary package hint: xorg

  This is on an Asus K50IJ laptop with Intel GMA X4500HD graphics. In
  the previous release (Karmic), the LCD brightness adjustment both on
  the keyboard, as well as the auto-dim for power save, worked
  flawlessly. As of today (April 7th, 2010) with all updates run, this
  still does not function for me in Lucid. The hotkey press does invoke
  the onscreen display that shows that an adjustment should be taking
  place, although it has  a definite delay for subsequent presses. The
  actual screen brightness, however, does not change.

  Needless to say, this also effects battery life. In Karmic, I was able
  to run about 3 hours on battery, now I can get right at about 2 hours,
  presumably due to the extra battery consumption necessary to run the
  screen without being able to reduce brightness.

  The output of lshw is attached, hope this helps.

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xorg 1:7.5+3ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
  Uname: Linux 2.6.32-19-generic i686
  Architecture: i386
  Date: Wed Apr  7 15:59:10 2010
  DkmsStatus: Error: [Errno 2] No such file or directory
  GdmLog1:
   
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
  MachineType: ASUSTeK Computer Inc. K50IJ
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=c2815e8b-bd9b-45fd-86bd-f2454ecf3751 ro quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 12/04/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 217
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K50IJ
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr217:bd12/04/2009:svnASUSTeKComputerInc.:pnK50IJ:pvr1.0:rvnASUSTeKComputerInc.:rnK50IJ:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: K50IJ
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.
  glxinfo: Error: [Errno 2] No such file or directory
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-19-generic

  [lspci]
  00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 09)
      	Subsystem: ASUSTeK Computer Inc. Device [1043:1862]

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